AHA Coding Clinic® for ICD-9 - 1984 November - December

Pacemaker Syndrome

The code assigned for pacemaker syndrome is 429.4, Functional disturbances following cardiac surgery. The pacemaker syndrome occurs when ventricular pacemaker patients experience a decrease in cardiac output during paced rhythm. The syndrome can overshadow an improvement from the pacemaker or actually lead to a worsening of symptoms that were present before the implantation. Congestive heart failure may develop because of retrograde pulmonary venous flow, or when the left ventricular contraction occurs while the mitral valve is open. The syndrome is actually a complex of clinical signs and symptoms related to the adverse blood flow through the heart and...

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